请教１句荷兰语

我觉得放在中间很自然，放在后面就像英语了。

动词都是放在第二位的，就像主谓宾一样啊，然后剩下的也有一定的排序，要是有有时间就一定会放在第三位。不知道自己的理解准不准确哦！

op een dag ging ik naar de kerkstraat. Mijn tante opende daar een klein winkeltje.

You can also put daar at front..
Daar opende mijn tante een klein .....
Its almost the same sentence construction as your first sentence..

ik ging naar de kerkstraat
mijn tante opende daar een winkeltje

Same sentence construction

there is a rough rule about where to put time and places in a sentence. In Dutch, time and places are mostly in the beginning or in the middle of the sentence. Almost never at the end - don't ask me why - they are dutch.
When put the time and places in the begining of a sentence, you will have to move the verb into the second position of the sentence. See examples from Chappie.